Fan Reference Configuration

Drive Fan

• There are two ways to configure the drive fan

• The first method works as soon as the motor moves after self-configuration

• The second method runs directly upon power on

• First method

• The 1 in value:1 means the fan turns on once connected to Klipper

[output_pin driver_fan]
pin: PF7
value:1

• Second method

[controller_fan driver_fan]      # Driver cooling fan
pin: 
cycle_time: 0.00003              # Cycle time
max_power: 1.0                   # Maximum power
shutdown_speed: 0.0              # Shutdown speed
fan_speed: 0.9                   # Fan speed when heater or stepper driver is active (0.0 to 1.0). Default is 1.0.
idle_timeout: 90                 # Time in seconds to keep the fan running after the stepper driver or heater is no longer active. Default is 30 seconds.
idle_speed: 0.4                  # Fan speed after the stepper driver is no longer active and before idle_timeout is reached (0.0 to 1.0). Default is fan_speed.
stepper: stepper_x               # Active motors
#Define the name of the heater/stepper configuration section associated with this fan. 
#If a comma-separated list of heater/stepper names is provided here, the fan will be enabled when any of the given heaters/steppers are enabled.
#The default heater is "extruder", and the default stepper is all steppers.

7040 Fan

• Mainly introduces the solution for the fan spinning upon power on

info

• Here is a brief explanation
• Add the PWM signal pin during firmware compilation and reverse its state
• Tested on SUPER8_PRO, using pin PF8. During firmware compilation, add !PF8 in GPIO pins to set at micro-controller startup
• Please ensure the ! entered is an English exclamation mark
• Other motherboards work similarly

[fan]
##    Print Cooling Fan 
pin:
max_power: 0.9
cycle_time: 0.002
hardware_pwm: false
shutdown_speed: 0

Multiple Fan Ports Sharing the Same Pin Configuration

• Not applicable to stepper motor pins

  [multi_pin my_fan]
  pins:PA1,PA2,PA3,PA4
  
  [fan]
  pin:multi_pin:my_fan